Spring-seat.



Nuxbamzm M. LALLY.

VSPRING SEM'.

(Application led July 2, 1900.\

(Nd Model.)

Patented Aug. 20, IQQI.`

UNITED STATES i PATENT OEEICE.

MICHAEL LALLY, OF N ORTHLAWRENCE, O'HUIO.

SPRING-SEAT.

SPECIFICATION forming para of Letters latentNo. 681,124, dated August V2o, i901.

' l Application filed July 2, 1900. l Serial No. 22,330. (No model.)

To all whom it may concern: v

Be it known that l, MICHAEL LALLY, a citi- Ohio, have invented a new and useful Spring` i Seat, of which the followingis a specification.`

My present invention relates to a novel spring-seat; and the object in view is to provide a light durable support for the springs, which will preclude the possibility of their sagging',and to provide a light upholstery-supj porting frame arranged to cover the springs and to retain them against displacement without depriving the upholstery or seat-covering of that `degree of elasticity necessary to the comfort of the occupant of the seat.

Further and subordinate objects of the inf vention are the provision of simple means for holding the springs upon the spring-support and the retention of the springs relative to each other andof the upl1olsteryframe relative to the springs by securing devices servingboth purposes.` U

To these ends the invention consists in providing a light metal plate as a "base or support for a series of spiral springs, which are sur- `mounted bya light open-work upholstery-supporting frame having sufficient inherent iiexibility to yield with one or more of the springs upon the superimposition of a Weight-as, for instance, the body of an occupant of the seat.

The invention further consists in the prof vision of staples for connecting the springs to the support, retaining-wires preventing relative lateralmovementof the springs and connectingthe upholstery support or ,frame to the springs, and iiexible devices-as, for instance, chains-for restrainingthe movement `ot the upholstery-supporting frame with re-` spect to the spring-support under the impulse of the interposed springs, all as will appear y more fully hereinafter and as will be illustrated in the accompanying drawings and de- `fined in the appended claims.

Referring to saidA drawings, Figure 1 is a t `plan viewof a car-seat constructed in accordance with my invention with the upholstery removed. Fig.2 is a central longitudinal section through the subject-matter of Fig. 1. Fig. 3 is a transverse sectional view thereof. Fig. 4 is a view of the spring-support detached.

` Referring to the numerals of reference employed to designate corresponding parts in the several views', 1 indicates the frame of a carseat,which,as usual,is of rectangular term and is provided around its edges with inwardly-exr 4 tending iianges 2,secured to the frame by bolts 3. The flanges 2 are designed to support the edges of a light metal plate 4, which I have chosen to term the spring support or plate, having a number of holes 5 adjacent to its edges for the reception of securing-bolts 6, which serve to rigidly retain the plate 4 upon the flanges 2. The plate 4 is designed to support a number of spiral springs 7 of the form usually employed in spring-seat constructions and distinguished by approximately cir cular base-coils 8, which are seated upon the plate 4 between concentric circular series of openings 9 and 10, the holes of the series being paired to facilitate the retentionof the springs 7 by pliable fastenin gs 11, which span or straddle the base-coil 8 and have their opposite ends passed through an opening of each series and bent in opposite directions against the under side of the plate 4. Supt ported upon the several springs is a light inherently resilient Wire upholstery supporting frame 12, composed of longitudinal and transverse bars or wires 13 and 14 and springs 7 carried by the seat-support. This frame is designed to carry the cushion or upholstery 15 of the seat and serves to prevent the individual springs from working into the cushion, and thereby causing it to become uneven `by reason of the protrusion of the springs or by the sagging of the cushion intermediate of the springs. t

t Various Ways of connecting the upholstery- .of a size just sufcient to cover all of the t supporting frame to the springs may be de- IOO In the illustrated vemloodinrientof 'thefinf ventionI first `wrap `the end of the`-wire 1'6 around the ,end wire of the frame 12 and around the contiguous portion of the upper convolution of the adjacent spring 7, as shown in Fig. 1. I then carry saidwire across said spring to the adjacent spring at the same side of the frame, which spring is in turn connected to the frame 12 in the mannery stated, and the wire is then led in similari manner and secured to one of the end springs,' from whence it is carried acrosstotheadja- Y" cent end spring, thence along the oppositei side of the frame to the middle spring at that` side, thence across to the middle spring at the vfirst side, thence back again to the middle spring-to the side-opposite thebeginning of@ the strand, thence to the end springadfjacent tothe-spring. iirst secured,and thence across; tol-the last-named spring, wlhere its secondl end iswrapped in a manner similar to the@ first. By this means the several Vsprings at each side of the frame are secured in series; and are'likewise secured to the corresponding spring Vatthe opposite side of theframe. i

Fo'rlthe purpose of rendering uniform .the movement of the frame'l2 under'the 'eXpan-. sion of the several springs I restrain saidf springs by means of ilexible restraining de-` vices-as, rfor instance, the chainsvl, having; term'inal hooks engaging the edge of the. framelZ and the upper convolution of each;I spring and having their opposite `ends Aper-` manently retained Iupon the "frame v1, as loyE screws 18 'or other suitable'means.

"Itwill beobvious'fromthe foregoing that Ih'a've produced a spring-seat in which the springs 'are 'supported upon a rigid-u'nyieldf in'gbase and inwh'ich a light open-work re-' silie'nt frame isin'terposed between'the springsj` l and theuphOIStery, and, further, that I haveI the invention to various forms of seats, the car-seat illustrated being shown merely for x thevpurpose of rendering the 'foregoing de-i scripti'onmore comprehensive. I therefore reservethe'right'to effect such changes,n1odi 'cationsg vand lvariations 'as lI'nay'come properlywi'thiny the scope ofthe protection prayed.

It maybe stated, in conclusion, that while various forms of devices may be employed for clenching the fastenings 11 beneath the plate 4,1 prefer to employ a tool having a springs, and a single'wire strand-connecting all of the springsto the upholsteryls'upportingframeand to each other, said single strand extending between the springs'in-both longitudinal and transverse -directions With respect to the frame.

2. In a spring-seat, the combination with a seat-frame anda spring-supporting plate carried thereby, of a-series of springs secured upon the'supporting-plate, anopen-work, in- .herently resilient upholsteryframe mounted upon the springs,- a wire strand serving to connect'the upholst'erylframe'to the springs, and Iiexible restraining devices 'secured at one end "to the seat-frame and provided-at their opposite ends -With engaging devices detachably engaging the edge of the upholstery-frame and the adjacent convolution of each spring. v

3. In a spring-seat,'the combination witha seat-frame, and a spring #supporting plate carried thereby, of a series of 'springs secured upon'the'supportingfplata an open-work, in-

herently-resilient upholstery supportingi frame mounted upon the springs, a Wire strand serving to connect the upholstery-V fr'ame'to the springs and to connect said springs 'against relative lateral movement, and flexible restraining devices secured at one endto theseat-frame and provided attheir opposite ends With'hooks engaging the edgeV ofthe upholstery-frame and the uppermost convolution of each spring.

Intestimo'ny that Ivcl'aim the foregoing as IOO my own 'I have hereto afxedmy signature in Witnesses:

4CHARLES M. WISE, LoUIs H. BAMBERGER. 

